Sack or barrel transfer



(.11 0 Model.) 4 Sheets-Sheet 1.

H; J. vPRU'IIEIERS. I SAGK 0R BARREL TRANSFER. No. 550,193. PatentedN0vi19, 1895.

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(N5 Model.) 4 Sheets-Sheet 2. H J PRUTHERS SACK 0R BARREL TRANSFER.

7 No. 550,193. Patented Nov. 19, 1895.

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H. J. PRUTHERS.

SACK 0R BARREL TRANSFER.

No. 550,193. Patented Nom -19, 1895;

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H. J. PRUTHBRS.

SAGK 0R BARREL TRANSFER.

No. 550,193. Patented Nov. 19,1895.

g, IClr/ay JPruiiiem UNITED STATES PATENT OFFICE.

HARVEY J. PRUTHERS, OF MINNEAPOLIS, MINNESOTA.

SACK OR BARREL TRANSFER.

SPECIFICATION formingpart of Letters Patent No. 550,193, dated November19, 1895. 7

Application filed May 2'7, 1895. Serial No. 550,780. (No model.)

To aZZ whom it may concern.-

Be it known that I, HARVEY J. PRUTHERS, of the city of Minneapolis,county of Hennepin, State of Minnesota, have invented certain new anduseful Improvements in Sack or Barrel Transfers, of which the followingis a specification.

My invention relates to devices for automatically removing the filledpackages of flour or other grain from the packer to the weighing-scale.

The object I have in view is to provide a device for automaticallytransferring the filled packages of flour, bran, or other grain from thepacker-platform to the weighingscale and thereby saving the trouble andeX- pense of transfering the same by hand.

My invention consists in providing a mechanism in connection. with thetransferring apparatus, whereby the device may be used in filling andtransferring packages of different sizes with equal facility.

My invention consists generally in providing a carrier upon which thepackage is deposited from the packer-platform and a mechanism to bereleased by the descending packerplatform, by which the carrier and thepackage will be quickly transferred to the scaleplatform, in combinationwith a mechanism for lowering said carrier and depositing the packageupon the scale-platform, all as hereinafter described, and particularlypointed out in the claims.

The invention will be more readily understood by reference to theaccompanying drawings, forming part of this specification, and inwhich--- 7 Figure 1 is a plan view of the device embodying my invention.Fig. 2 is a longitudinal section on the line :12 at of Fig. 1. Fig. 3 isa plan view of the carrier. Fig. 4 is a side view thereof. Fig. 5 is asectional View of a portion of the carrier, showinga modifiedconstruction of the same. Fig. 6 is a similar view showing a preferredform of construction. Fig. '7 is a sectional view of Fig. 6 on the liney Fig. 8 is a detail view of the belt, by means of which the carrier ismoved from the packer to the scale-platform. Fig. 9 is a detail of thedrum over which the carrier-belt passes. Fig. 10 is a plan view of thereleasing mechanism arranged beneath the machine. Figs. 11 and 12 aredetails of the releasing mechanism. Fig. 13 is a detail showing the railcarried by the packer-platform in engagement with the upright guide.Fig. 1 L is a detail of the mechanism for lowering the carrier as itapproaches the scaleplatform. Fig. 15 is a detail of a portion of thescale-platform. Fig. 16 is a perspective of the packer-platform.

In the drawings, 2 represents the floor of the mill, provided with thelarge opening 3, within which is arranged the transferring mechanism.The entire apparatus-is supported from the floor 2 by bolts 4., whichextend down through the end of the frame or platform 5.

This frame or platform may be raised or lowered by means of nuts uponthe bolts 4.. A frame 6 is provided, which nearly fills the opening 3 inthe floor, and is supported onthe platform 5 by threaded rods or bolts7, having their upper ends secured in any suitable manner to theunderside of the platform 6. Each of these rods 7 is provided withsprocketwheels 8, as shown by dotted lines in Fig. 1, and asprocket-chain 91s provided to pass over these wheels and overidler-sprockets 10 and around a similar sprocket-wheel 11 on the uprightrod or shaft 12, having a suitable handwheel 13 on its upper end, bymeans of which the rods 7 may be turned in their bearingsin the frame 5and the platform 6 raised or low ered whenever desired. At one end ofthe platform 6 is arranged the packer, which is of the usual form andneed not be described here. 14, the bottom or floor of which maybecomposed of a series of plates arranged with spaces between them, orpreferably cast in one piece, so that when the platform is depressed asthe package is filled the plates will fit into the spaces between theplates of the carrier, hereinafter described, and deposit the packageupon the upper edge of the plates composing the carrier. Thepacker-platform is also provided with a curved brace 15, which serves tostrengthen the same and retain the packages in position while beingfilled.

The carrier may be made of a series of plates 16, held together, asshown in Fig. 3, by rods 1.7, or it may be cast in one piece, as shownin Fig. 6. The carrieris adapted to slide upon the rails 18, which forma track between the It is provided with a packer-platform I packer andthe weighing-scale, and pivotally supported beneath the packer-platformupon the standard 18. The upper edges of the plates composing thecarrier are roughened, and one end of the same is turned up to aid inretaining the package in position upon the carrier. A chain 19 isconnected to one end of the carrier and passes over pulleys 20 and 21,and is provided with the weight 22 by which the carrier is returned toits normal position after depositing the package upon the weighingscale.

To the opposite end of the carrier is con-. nected a belt 23, whichpasses over a pulley 24 near the scale-platform and thence to a drum 25upon the shaft 26, that is arranged beneath the floor. The shaft 27 isarranged near the shaft 26 and is provided upon its end with afriction-pulley 28 in position to engage a similar pulley 29 on theshaft 26. The shaft 27 is supported in bearings which permit a slighthorizontal movement of the end of the shaft adjacent to the shaft 20,and its opposite end is provided with a pulley 30, over which a beltpasses to the main driving-shaft of the machine. As shown in dottedlines in Fig. 10, a lever 31 is provided near the shaft 27 and isprovided near its pivoted end with a chain or cord 32, which passes overa pulley and is connected to the shaft 27 near the friction-pulley 28.On the opposite side of the shaft is provided a spring 34, for thepurpose hereinafter described.

The guide 13 of the packer-platform is provided with a pivoted catch 35,which extends out beyond the edge of the guide in position to be engagedby a lug or projection 36 on the frame of the packer-platform. A rod 37is provided having a slot in its upper end in which the catch is pivotedand having its lower end connected to dog 38, the end of which isnormally in engagement with the edge of the lever 31. Near the dog 38the lever 31 is provided with the opening 39,

through which passes a cord or chain 40, having an adjustable button 41,and passing over a drum 42, arranged upon the shaft 26, and provided atits opposite end with a suitable weight. The packer platform is providedwith the roller 43, adapted to engage the edge of the guides 13 andthereby lessen the friction and decrease the wear on the face of theguide.

As before stated, the rails 18 are pivotally supported at one endbeneath the packerplatform upon the standards 18, and the mid-, dleportion of the rails is supported by the parts 44, which have slottedlower ends to; receive the ends of a rod which is supported in bearingson the under side of they The parts 44 are provided at theirf frame 6.upper end with the inclined and horizontal slots 46, through which thebolts 47 pass into the rails 18. The parts 44 move back and forth ontheir supports 45 and the bolts 47 are free to slide in the slot in theupper end of each part 44. The parts 44 are connected beneath the rails18 by the rod 45, provided near its middle portion with a chain or cord47 having its opposite end connected to the carrier. The left-hand endof the rails 18 is not supported, being free to move up and down,accordingto the position of the parts 44. When the carrier is in itsnormal position beneath the packer-platform the bolts 47 will be in thehorizontal part of the slot 46 and the track 18 will be in its upper orhorizontal position, as shown by full lines in Fig. 2. As the carrierisdrawn toward the scale-plat form, the cord or chain 47 will throw theparts 44 into the position indicated by dotted lines in Fig. 2, and thismovement will also cause the bolts 47 to slide in the inclined portionof the slots 46 and permit the weight of the carrier to depress therails until the package on the carrier has been deposited upon thescaleplatform. The return movement of the carrier throws the parts 44back to their normal position and elevates the track. WVhen the carrieris returned to its normal position, the chain or rope 47 will throw theparts 44 back to an upright position and elevate the track.

The scale -platform comprises a series of plates 48, having a corrugatedupper surface and provided at one end with grooves 49 and having theopposite end rounded, so as to avoid any possibility of the packagecatching thereon. These plates 48, comprising the scale-platform, arearranged with. a space between them to receive the plates comprising thecarrier. The rails 18 are also provided with a felt strip 50, arrangedin a slot in the upper edge of the rail, within which any suitablelubricating material may be placed.

As shown in Fig. 7, the bottom of the carrier is open, so that anymaterial that is spilled during the process of filling the sack orpackage will fall through the bottom of the carrier into a receptacleprovided beneath.

The operation of the device is as follows: The packer-platform is raisedup when it is desired to fill the package, and as the package isgradually filled the platform slowly sinks until its bottom becomesmerged into that of the carrier arranged beneath. The plates of thecarrier-bottom being wider than those of the packer-platform bottom itnecessarily follows that when the packer-platform has become entirelymerged into that of the carrier-platform the package will rest upon theedge of the plates comprising the carrier and the catch 35 will betripped, releasing the lever 31 and permitting the spring 34 to draw theshaft 27 to the position indicated in Fig. 10, thus bringing thefriction pulley 28 into engagement with the pulley 29 011 the shaft 26.As soon as the pulley 28 is thrown into engagement with the pulley 29,the carrier will be moved along the track 18 toward the scale-platform.As it approaches the scale-platform, the points 44 will be thrown overto the position indicated by dotted lines in Fig. 14 and the end of thetrack beneath the scale-platform depressed, so that as the plates IIOcomprising the carrier-platform pass between the plates of thescale-platform the package will be deposited upon the scale-platformready to be weighed. As soon as the carrier has deposited the packageupon the scaleplatform, the button 41 will strike the edge of the lever31, throwing the same to the position indicated by dotted lines in Fig.10 and throwing the pulley 28 out of engagement with the pulley 29 andstopping the further movement of the carrier. The weight 22, attached tothe opposite end of the carrier, will then draw the same back over thetrack to a point ben eath the packer-platform in position to receiveanother package. As the carrier approaches its position beneath thepackerplatform the parts 44 will be, thrown back to their normalvertical position and the end of the track raised to its normalhorizontal position.

If it is desired to fill packages of different sizes, the platform 6 maybe raised by means of a sprocket mechanism, so as to adapt the packer tothe change in the size of the package.

As shown in Fig. 8, the belt 23 is provided with an adjustablemechanism, so that its length may be adjusted according to the height ofthe platform 6 above the operating mechanism of the machine.

Having thus described my invention, I claim as new and desire to secureby Letters Patent-- 1. The combination, with the packer platform, of thecarrier arranged beneath the same in position to receive the filledpackages therefrom, the scale platform, the track betweensaid scale andpacker platforms, the mechanism for drawing said carrier over said tracktoward said scale platform, said mechanism being adapted to be releasedsimultaneously with the delivery of the package to said carrier, andsaid track being arranged to be depressed when said carrier is near thelimit of its movement toward said scale platform, for the purpose setforth.

2. The combination, with the packer platform having an open bottom, ofthe carrier also having an open bottom, said packer platform beingadapted to merge into the open platform of said carrier and deposit thefilled package thereon, the scale also having an open platform toreceive said carrier, the track between said scale and packer platforms,the automatically released mechanism for moving said carrier over saidtrack toward said scale, and said track being adapted to be depressed bysaid carrier near the limit of its movement toward the scale platform,for the purpose set forth.

3. A sack or barrel transfer, comprising a suspended platform 5, theplatform 6 supported by said platform 5 and vertically mov-- able, thepacker platform arranged near said platform 6 and having an open bottom,the carrier arranged beneath said packer platform upon said platform 6and also having an open bottom, the scale platform arranged at theopposite end of said platform 6 and adapted to receive said carrier, thetrack connecting said scale platform and said packer platform, themechanism for moving said carrier along said track toward said scaleplatform, said track being adapted to be depressed when said carrier isnear the limit of its movement toward said scale platform, means forarresting the operation of the mechanism for drawing said carrier towardsaid platform and suitable means for drawing said carrier back to itsnormal position after the package has been deposited upon said scaleplatform, substantially as described.

4. The combination, with the vertically moving packer platform having anopen bottom, a carrier beneath said packer platform and also having anopen bottom, the bottom of said packer platform being adapted to mergeinto the bottom of said carrier platform and deposit the filled packagethereon, the scale also having an open bottom, the track between saidscale platform and packer-platform, the mechanism for moving saidcarrier over said track toward said scale, the pivoted parts 44supporting said track and connected to said carrier and operated therebyto permit the depression of said track when said carrier is near thelimit of its movement toward said scale, for the purpose set forth.

'5. The combination, with the vertically moving packer platform, thecarrier arranged beneath the same and adapted to receive the filledpackages therefrom, the scale platform, the track between said scaleplatform and said packer platform, the mechanism for moving said carrieralong said track toward said scale platform, the pivoted parts 44supporting said track, said parts 44 being provided with the diagonalslot 46, means connecting said parts 44 and said carrier, whereby whensaid carrier approaches the limit of its movement toward said scaleplatform said parts 44 will be thrown from their normal vertical position and said track depressed, for the purpose set forth.

6. The combination, with the packer platform, of the carrier arrangedadjacent thereto to receive the filled packages therefrom, the trackbetween said scale platform and said packer platform, the automaticallyreleased mechanism for moving said carrier along said track toward saidscale platform, the swinging parts 44 provided with diagonal slots 46,screws or bolts extending through said slots into the rails of saidtraclgrespectively,means connecting said parts 44 and said carrier,whereby when said carrier is drawn toward said scale platform said parts44 will be thrown from their normal vertical position and said trackdepressed, and means for drawing said carrier back to its normalposition near said packer platform and throwing said parts 44 back. totheir normal position and elevating said track, substantially asdescribed.

7. The combination, with the packer platform, the vertical guidestherefor, the carrier adjacent to said packer platform, the scale, thetrack between said scale and packer platform, the mechanism for movingsaid carrier along said track, said mechanism comprising a shaft 27proyided with a friction pulley 28, a shaft 26 having a similar pulley29, a drum upon said shaft 26, a belt connecting said drum and carrier,the pivoted lever 31 connected to said shaft 27 and ar anged to holdsaid friction pulley 28 out of engagement with said pulley 29, a spring34, and a mechanism arranged upon the guide of said packer to beactuated by the descending packer platform to release said lever 31 topermit saidpull'ey 28 to be thrown into engagement with said pulley 29,by said spring 3i and in'eansfor disengaging the same, substantially as*de form is vertically movable, the carrier, the

scale platform, the track between said scale platform and said packerplatform, the mech- I anism forniovingsaid'carrier along said tracktoward said scale platform, said mechanism comprising shafts '26 and 27;, the friction pul- 3 leys 28 and-29 carriedby'said shafts resp'ect Eively means for throwing said pulley 28 into v resting the operation ofthe mechanism for engagement with said shaft '29, a belt connecti-ngsaid shaft 26 and said carrier, apivoted lever 31 connected to saidshaft 2 7, a

drum42 uponsaid shaft 26,the cable 4'0 eon nected to said-drum andextending through an opening in said lever 31 the dog 38, a-cat-charranged upon the guide of said packer to be operated by the descendingpacker platform, means connecting said catch and said dog, andadjustable means carried by said cable for throwing said lever 31 intoengagement with the end of said dog, and disengaging said pulley 28 fromsaid pulley 29 when said carrier is near the limit of its movementtoward said scale, substantially asdescribed.

9. H A sack or barrel transfer, comprising a platform 5, the platform 6arranged above the same, the threaded rods or screws supporting saidplatform 6 upon said platform 5, the sprocket mechanism connecting saidscrews or bolts 7, whereby said platform 6 is renderedverticallyadjustable, the vertically moving packer platform, the carrierarranged upon said platform 6 and adapted to receive the filled packagesfrom said packer platform, the

scale platform, the track between said scale platform and said packerplatform, the tripping lever arranged to be engaged by the descendin'gpacker platform, means adapted to be released by said lever for drawingsaid carrier along said track toward said scale platform, said carrierplatform being adapted to merge into said scale platform and deposit thefilled package thereon, said track being arranged to be depressed whensaid carrieris near the limit of its movement toward said vscaieplatform, and to be lifted again to its normalpos'ition when saidcarrier is near the limit of its return movement, meansfor ardrawingsaid carrier toward said platform and means for drawing said carrierback to its my hand this 20th day of May, A. .-D. .1895.

HARVEY J. PRUT'HERs.

In vpresence of A. 0. PAUL, RICHARD PAUL.

